Hypotonic duodenography without the use of a stomach tube.

@article{Orth1973HypotonicDW,
  title={Hypotonic duodenography without the use of a stomach tube.},
  author={J O op den Orth},
  journal={Radiologia clinica et biologica},
  year={1973},
  volume={42 2},
  pages={173-4}
}